aoqi@0: /*
aoqi@0:  * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.  Oracle designates this
aoqi@0:  * particular file as subject to the "Classpath" exception as provided
aoqi@0:  * by Oracle in the LICENSE file that accompanied this code.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: package com.sun.xml.internal.ws.api.pipe;
aoqi@0: 
aoqi@0: import java.util.concurrent.Executor;
aoqi@0: import java.util.concurrent.Executors;
aoqi@0: import java.util.concurrent.ThreadFactory;
aoqi@0: import java.util.concurrent.atomic.AtomicInteger;
aoqi@0: 
aoqi@0: import com.sun.xml.internal.ws.api.message.Packet;
aoqi@0: import com.sun.xml.internal.ws.api.server.Container;
aoqi@0: import com.sun.xml.internal.ws.api.server.ContainerResolver;
aoqi@0: 
aoqi@0: /**
aoqi@0:  * Collection of {@link Fiber}s.
aoqi@0:  * Owns an {@link Executor} to run them.
aoqi@0:  *
aoqi@0:  * @author Kohsuke Kawaguchi
aoqi@0:  * @author Jitendra Kotamraju
aoqi@0:  */
aoqi@0: public class Engine {
aoqi@0:     private volatile Executor threadPool;
aoqi@0:     public final String id;
aoqi@0:     private final Container container;
aoqi@0: 
aoqi@0:     String getId() { return id; }
aoqi@0:     Container getContainer() { return container; }
aoqi@0:     Executor getExecutor() { return threadPool; }
aoqi@0: 
aoqi@0:     public Engine(String id, Executor threadPool) {
aoqi@0:         this(id, ContainerResolver.getDefault().getContainer(), threadPool);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public Engine(String id, Container container, Executor threadPool) {
aoqi@0:         this(id, container);
aoqi@0:         this.threadPool = threadPool != null ? wrap(threadPool) : null;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public Engine(String id) {
aoqi@0:         this(id, ContainerResolver.getDefault().getContainer());
aoqi@0:     }
aoqi@0: 
aoqi@0:     public Engine(String id, Container container) {
aoqi@0:         this.id = id;
aoqi@0:         this.container = container;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void setExecutor(Executor threadPool) {
aoqi@0:         this.threadPool = threadPool != null ? wrap(threadPool) : null;
aoqi@0:     }
aoqi@0: 
aoqi@0:     void addRunnable(Fiber fiber) {
aoqi@0:         if(threadPool==null) {
aoqi@0:             synchronized(this) {
aoqi@0:                 threadPool = wrap(Executors.newCachedThreadPool(new DaemonThreadFactory()));
aoqi@0:             }
aoqi@0:         }
aoqi@0:         threadPool.execute(fiber);
aoqi@0:     }
aoqi@0: 
aoqi@0:     private Executor wrap(Executor ex) {
aoqi@0:         return ContainerResolver.getDefault().wrapExecutor(container, ex);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Creates a new fiber in a suspended state.
aoqi@0:      *
aoqi@0:      * <p>
aoqi@0:      * To start the returned fiber, call {@link Fiber#start(Tube,Packet,Fiber.CompletionCallback)}.
aoqi@0:      * It will start executing the given {@link Tube} with the given {@link Packet}.
aoqi@0:      *
aoqi@0:      * @return new Fiber
aoqi@0:      */
aoqi@0:     public Fiber createFiber() {
aoqi@0:         return new Fiber(this);
aoqi@0:     }
aoqi@0: 
aoqi@0:     private static class DaemonThreadFactory implements ThreadFactory {
aoqi@0:         static final AtomicInteger poolNumber = new AtomicInteger(1);
aoqi@0:         final AtomicInteger threadNumber = new AtomicInteger(1);
aoqi@0:         final String namePrefix;
aoqi@0: 
aoqi@0:         DaemonThreadFactory() {
aoqi@0:             namePrefix = "jaxws-engine-" + poolNumber.getAndIncrement() + "-thread-";
aoqi@0:         }
aoqi@0: 
aoqi@0:         public Thread newThread(Runnable r) {
aoqi@0:             Thread t = new Thread(null, r, namePrefix + threadNumber.getAndIncrement(), 0);
aoqi@0:             if (!t.isDaemon()) {
aoqi@0:                 t.setDaemon(true);
aoqi@0:             }
aoqi@0:             if (t.getPriority() != Thread.NORM_PRIORITY) {
aoqi@0:                 t.setPriority(Thread.NORM_PRIORITY);
aoqi@0:             }
aoqi@0:             return t;
aoqi@0:         }
aoqi@0:     }
aoqi@0: }